The function f(x)=(1-sinx+cosx)/(1+sinx...

The function `f(x)=(1-sinx+cosx)/(1+sinx+cosx)` is not defined at `x=pi`. The value of `f(pi)`, so that f(x) is continuous at `x=pi`, is

A

`-1//2`

B

`1//2`

C

`-1`

D

1

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The correct Answer is:

C

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